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Finding the Fourth Proportional to 404,361.75, 606,438.80 and 119,985.06

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Solution

The fourth proportional to 404,361.75, 606,438.80 and 119,985.06 is: 179,946.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,361.75 : 606,438.80 = 119,985.06 : x
  2. Step 2: Convert to fraction form
    404,361.75/606,438.80 = 119,985.06/x
  3. Step 3: Cross multiply
    404,361.75x = 606,438.80 × 119,985.06
  4. Step 4: Simplify right side
    404,361.75x = 72,763,595,204.40
  5. Step 5: Solve for x
    x = 72,763,595,204.40/404,361.75
  6. Step 6: Final answer
    x = 179,946.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.